import { describe, expect, it } from "vitest";
import { locationSchema, locations } from "../src/index";

// The cargo types planned for Step 2.4; replaced by the real data once it exists.
const cargoTypeIds = ["standard", "heavy", "high-value", "dangerous"];

describe("locations", () => {
  it("all pass the schema", () => {
    for (const location of locations) {
      expect(() => locationSchema.parse(location)).not.toThrow();
    }
  });

  it("has exactly five locations with unique ids", () => {
    expect(locations).toHaveLength(5);
    expect(new Set(locations.map((l) => l.id)).size).toBe(5);
  });

  it("starts with exactly Earth and Moon discovered", () => {
    const discovered = locations.filter((l) => l.startsDiscovered).map((l) => l.id);
    expect(discovered.sort()).toEqual(["earth", "moon"]);
  });

  it("references only existing cargo types", () => {
    for (const location of locations) {
      for (const cargoId of [...location.produces, ...location.demands]) {
        expect(cargoTypeIds).toContain(cargoId);
      }
    }
  });

  it("gives Earth the highest launch multiplier", () => {
    const earth = locations.find((l) => l.id === "earth")!;
    for (const location of locations) {
      if (location !== earth) {
        expect(earth.launchCostMultiplier).toBeGreaterThan(location.launchCostMultiplier);
      }
    }
  });
});